论文标题
Moiré图案上的涡流动态，固定和魔术角
Vortex Dynamics, Pinning, and Magic Angles on Moiré Patterns
论文作者
论文摘要
我们检查了与位于Moiré图案中的固定中心相互作用的Abrikosov涡流的固定和动力学，用于各种Moiré晶格角。我们发现了一系列魔法角度，其中临界电流显示出与晶格相对应的明显倾角，其中涡流可以沿准二维通道流动。在这些魔法角度，涡流以有限的大厅角移动。此外，对于某些晶格角，当底物具有准二碘特性时，产生的临界电流峰值会大大降低涡流通道。我们的结果应该是在Moiré图案上移动的一系列粒子状组件的一般性。
We examine pinning and dynamics of Abrikosov vortices interacting with pinning centers placed in a moiré pattern for varied moiré lattice angles. We find a series of magic angles at which the critical current shows a pronounced dip corresponding to lattices in which the vortices can flow along quasi-one-dimensional channels. At these magic angles, the vortices move with a finite Hall angle. Additionally, for some lattice angles there are peaks in the critical current produced when the substrate has a quasiperiodic character that strongly reduces the vortex channeling. Our results should be general to a broad class of particle-like assemblies moving on moiré patterns.
